2009年重庆市长寿区土源性寄生虫病现状调查

Survey of infectious status of soil-borne parasites in Changshou District of Chongqing City in 2009

目的了解重庆市长寿区土源性寄生虫病人群感染动态及影响因素,为制订土源性线虫病防治策略和评价防治效果提供科学依据。方法按东、西、南、北四个方位抽取4个乡镇的4个村为调查点;3周岁以上常住居民为对象,每个点调查人数不少于500人,采用改良加藤厚涂片法(一粪三检)常规计数检查土源性寄生虫卵,3～12周岁儿童加做透明胶纸肛拭法定性检查蛲虫卵。随机抽取一个调查点内10户居民,进行感染因素调查和环境土壤污染情况调查。结果本次检查共粪检2 545人,检出虫种有蛔虫、钩虫和蛲虫3种。感染219人次,感染率为8.61%。其中,钩虫感染率最高为7.82%,其次是蛲虫为4.09%,蛔虫感染率为0.43%最低。检测土壤40份,菜园、厕所土壤蛔虫卵检出率为40.00%,庭院、厨房检出率为20.00%。结论长寿区人体土源性寄生虫病感染率呈下降态势,但是钩虫和蛲虫感染率仍较高,应采取综合性的防治措施,尽快降低感染率。

Objective To understand the infectious status of soil-borne parasites in Changshou District of Chongqing.Methods Four monitoring sites were isurveyed,which were selected from 4 townships according to the geographical distribution.Inhabitants with age of 3 or above were included in the monitoring.Parasite eggs（tapeworms,ascaris and pinworms and hookworms） in the fecal samples were detected using Kato-Katz thick smear method.Cellophane anal swab was used for collecting pinworm eggs in children aged 3-12 years old.10 samples were randomly collected from each monitoring sites.Soil samples collected from the vegetable garden,lavatory,baekyarcl and the kitchens were exmamined for ascaris eggs.Results Totally 2 545 people were examined and 219 were found to be infected with an infection rate of 8.61%.The infection rate of hookworm,whipworm and ascaris were 7.89%,5.41%and 0.43%,respectively.The rate of ascaris infection I soil samples were from 20% to 40%.Conclusion The infection rate of soilborne parasites was increased in Changshou and the infection rates of hookworm and whipworm were still higher.Integrated measures be taken to reduce the infection rate of soilborne parasites.